From 01b5f01034b8e26c0b9be95c93ec96fa9aa3bd88 Mon Sep 17 00:00:00 2001
From: Christoph Niemann <kordolan@googlemail.com>
Date: Thu, 25 May 2023 14:49:52 +0200
Subject: [PATCH] join repeated "<<"

https://github.com/docker/compose/issues/10411

repeated "<<" break docker-compose >= 2.17

yaml: unmarshal errors:
  line 148: mapping key "<<" already defined at line 147
---
 docker-compose.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/docker-compose.yml b/docker-compose.yml
index ceb945d..9a6240f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -144,9 +144,9 @@ services:
       - mysql
     environment:
       icingaweb.enabledModules: director, icingadb, incubator
-      <<: *icinga-db-web-config
-      <<: *icinga-director-config
-      <<: *icinga-web-config
+      <<:  [ *icinga-web-config, 
+             *icinga-db-web-config,
+             *icinga-director-config ]
     logging: *default-logging
     image: icinga/icingaweb2
     ports: